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When working with SM, wrap() manipulates res_APDU. Thus, we cannot change the pointer of res_APDU anymore. Everything must be memcpy-ed.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
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Pol Henarejos 2022-04-11 15:11:42 +02:00
parent 7232625bab
commit db5f5fd435
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1 changed files with 2 additions and 2 deletions
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4
src/hsm/sc_hsm.c
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@ -388,7 +388,7 @@ static int cmd_read_binary()
uint16_t maxle = data_len-offset;
if (apdu.expected_res_size > maxle)
apdu.expected_res_size = maxle;
res_APDU = file_read(ef->data+2+offset);
memcpy(res_APDU, file_read(ef->data+2+offset), data_len-offset);
res_APDU_size = data_len-offset;
}
}
@ -569,7 +569,7 @@ static int cmd_challenge() {
uint8_t *rb = (uint8_t *)random_bytes_get(apdu.expected_res_size);
if (!rb)
return SW_WRONG_LENGTH();
res_APDU = rb;
memcpy(res_APDU, rb, apdu.expected_res_size);
res_APDU_size = apdu.expected_res_size;
return SW_OK();
}